Can beef be eaten with onions?
Generally speaking, beef and onions can be consumed together, but intake should be controlled when eating them. Specific analysis is as follows:

Beef is rich in high-quality protein, iron, zinc, and other minerals, while onions contain sulfides, vitamin C, and dietary fiber. Combining the two can achieve nutritional complementarity. In daily cooking, they are often found together in dishes such as stir-fried beef and onion-braised beef brisket. Normal individuals usually do not experience discomfort when consuming them in moderate amounts; in fact, they can provide energy and antioxidants to the body.
Individuals allergic to meat such as beef or allium plants like onions may experience allergic reactions when consuming them together, including symptoms such as skin itching, nausea, and vomiting. Consumption should be stopped immediately, and physical reactions should be observed. Patients with gout or hyperuricemia should control their beef intake, as beef is a moderate-to-high purine food, and consuming it in large amounts with onions may increase the risk of uric acid production, especially during a gout attack, when caution is advised. For individuals with weak gastrointestinal function, the pungent components in onions and the high protein content in beef may increase digestive burden, leading to discomfort such as bloating and abdominal pain. Such individuals should reduce intake and avoid consuming them on an empty stomach.
In addition, cooking methods should be considered in daily diets. Beef should be thoroughly cooked to kill microorganisms, and onions can be cooked to reduce their pungency and irritation. A balanced intake with leafy vegetables and grains is recommended to avoid excessive consumption of a single ingredient.